Car wont start

Did you use a volt meter to test voltage drop on starter circuit ? It's easy to get aggervated When you don't know what your doing .
Starter Voltage Drop

The relay is located in the relay box under the hood in the relay box. I suggest you Google "relay location 2003 Mitsubishi Eclipse" for the exact location. For troubleshooting purposes, once you locate the relay, simply swap it with an identical relay within the relay box. If it still fails to start, then it is not the relay.

How to voltage drop test starter motor circuit Looking at a wiring diagram an testing the starter circuit with a DMM - digital multi-meter is the way to find the problem . Free wiring diagram's here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model an engine size. Under system click on engine then under subsystem click on starting . Click the search button then the blue link .
Looking at the diagram you will see this starting circuit is computer controlled . Ignition switch is a low voltage input to the BCM - body control module. A message to the ECM - engine computer from the BCM requesting a start over the serial data network (class2) will energize the relay sending B+ voltage to the S terminal on the starter solenoid . Your best bet mite be to have it towed to a qualified repair shop.

READ THIS ALL BEFORE YOU DO ANYTHING
NOTE: some vehicles have the starter relay and starter mounted together as 1 unit. Sometimes the starter relay and starter are seperate. When I refer to "relay" it could also mean the starter and relay as 1 unit.
Note: "starter switch" is not to be confused with "key switch", although sometimes they are all one unit. The starter switch is usually mounted on the steering column and actuated by a metal rod. On units that are all one unit, the keyswitch/starter switch (both one unit) will have to be replaced. (this is a rare problem, so don't get worried just yet)
1. Check battery voltage, should be between 12.5-14.5 volts. if low voltage replace or charge battery, and try to start car, if it don't crank with new or charged battery, move on.
2. Check connections on the starter relay, even the small one coming from your starter switch. if loose or corroded, clean with a brush and reconnect them. Try to start your car. Did it start? if not, Move on
3. Well now we know the connections aren't the problem. How about a click? did you hear one? If a click is heard, go to #4, if nothing is heard, go to #5
4. Well at least the relay is clicking, but nothing else is going on. The relay is working, so the starter must be bad. Replace the starter and start your car!
5. Humm, connections aren't the problem, maybe the relay is bad, replace your relay with a new one. Move on
6. Now we have a new relay, with clean and tight connections. Start your car. Does it start? If yes, then HORRAY! we fixed it. Does it click? If so then goto #7, If it don't click, then goto #8
7. So here we have a new relay, with good connections that will click when trying to start the car, but nothing else happens. Starter is faulty, replace the starter, and off you go, see ya!
8. So here we have a new relay, with good connections, but it still won't click when we try to start our car. This means that your starter switch is faulty. Replace starter switch and try to start your car. Vroom! finally done with this car problem!
List of shortcuts: if you remove the starter switch lead (small wire) from the relay and apply +12v to its respective prong or lead on the relay, and your starter cranks, your starter switch is faulty. You can actually hook up a starter button this way. If you jump the two large wires together on the relay and it cranks, then the relay is faulty. If you jump the two large wires together and nothing happens, then starter is faulty, or wires to starter are loose or broken.

Hi don, 1st id take a look at the battery termionals clean them ,then look at the cables to the starter and clean an tighten them (1 goes top the starter and 1 goes either to a ground on the frame or to a block like solenoid) after that check your fuses to starter, starter relay and main fuse or relays in the big black box under hood and also inside car as well, my guess would be bad ground wire, locked up starter, or relay. even tho you charged your battery a cell in it couldve collaped as well. Hope this helps!!

Turn your steering column while turning on the car this should help. I had a problem with mine once and it did this (wouldn't start) but once the battery was replaced problem went away. You could also have a defected battery which also happened to my 2001 Eclipse RS last year.

The starter relay or starter solenoid would be my guess, but I am wondering what the gears on the old starter looked like. If they were in really bad shape (deformation or chunks missing) you may need to replace the flywheel.

Ignition coil my friend

you don't hit the alternator, you hit the starter to help is shake free because it is already going bad. take battery and alternator to parts store and have both tested. check the wires at the starter and make sure they are on SECURELY. very important SOLID CONTACT is occurring. do your lights turn on? check starter relay if the eclipse is equipped with one.

I have the same problem on my 2002 Eclipse RS 2.4l 4 cylinder. Replaced the battery, starter, fuel pump(not at one time) . It started up when I had the starter put on as well the fuel pump. But everytime I started the car up it ran good till I turned it off the problem was still there. The car sounds like it wants to start but it sputters you can smell the gas so I know its getting fuel. it starts up fine with a cold start like in the morning.

Try getting a diagnostic thats what Im going to do next week.
good luck!!!